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London Summer Walk

SAT 23 August 2025

SIGN UP HERE

How to Join

Self Fund – or Support a Charity.

Sign up online, pay the Registration Fee & look out for your confirmation email. If you choose one of the fundraising options and select a charity to support (there’s ~600 or so involved), we’ll confirm that with the charity, and they’ll contact you.

If you plan to Self Fund for 3 or more events in 2025, look at our Multi Deals for up to 25% OFF

For ‘Young Persons‘ it’s 20% OFF Self Fund prices (21 or under – subject to min age rules).

NOTE: This event is WALKING only (no running).

Choose how you want to join the Challenge  – register via that option and its associated online form. Then enter your personal details.

  • Option 1 – Self Funding 
  • Option 2 – Sponsorship for Charity
  • Option 3 – Mixed Funding for Charity
  • Option 4 – Own Place Charity Fundraising

 

* A ‘Platform Booking Fee’ of 3% is applied to all event registrations.

Confirm the distance you’ll take on (eg Marathon 42km, 25km, 10km) and then select a provisional start time slot (actual start times are confirmed 4 weeks prior to the event, and for Teams – it will be as per the Team Captain’s choice).

Everyone has to register as we require personal details & declarations. Within the form you can choose to ‘Create’ or ‘Join’ a Team. Teams can be of any size, members can opt for the same or different funding options, charities, or distances.

  • Create a Team – you become the Team Captain. You need a Team Name, and a Password for others to join. Then invite friends & family to join you!
  • Others join the Team as they register, by searching for the Team Name & using the Password
  • Team Start Time – is as per selected by the Team Captain

You need to select a charity to support if you’re fundraising. 3 categories of Charities are involved.

  • Official Partners – Long term Series & Challenge partner charities. With the ‘Charity Sponsorship’ option – it’s 50% OFF the normal Reg Fee.
  • Associate Partners  –  50 or so charities promoting the Series, and it’s 25% OFF normal Reg Fees for the Charity Sponsorship option. 
  • Listed Charities – 500 or so other charities involved – and the ‘normal‘ Reg Fee applies.

Be careful to tick the right box, or correct selection from the charity drop down list. Your confirmation email details how to set up an online JustGiving page for sponsorship donations (must be done within 48 hours)

All sponsorship goes direct to the Charity via your JustGiving page.

At least 50% of the ‘sponsorship target’ should be with the Charity 3 weeks prior to the Challenge. At this time the Charity agrees to pay a Fee for your place to the Organiser (similar to the Self Funding cost – or half of it for Mixed Funding as you’ve already covered half).

Failure to meet the deadline may result in cancellation of your place by your charity.

The remaining 50%, and any extra, should be with your Charity by 4 weeks after the Challenge.

Multi Deals are the Best value if you’re up for a 3 or more challenges in 2025 – and plan to ‘Self Fund’. There’s also the ‘PAYMENT PLAN’ option (covering most events – depending on timeline) – to spread the cost, stay active – and do more Ultra Challenges!

For those aged 21 or under there’s a ‘special deal’ to help families & groups of young friends to get active & involved.

It’s 20% OFF normal adult Self Funding prices – subject to minimum age rules / distance (ie at least aged: 18 for 100km / 16 for 50km / 14 for 25km / and 8 for 10km. Those under 18 need to be accompanied by an adult participant).

May Deal!

+ UP TO 75% OFF CHARITY REG FEES

+ ‘DUO SELF FUND’ – 10% OFF

+ 15% OFF ALL MERCHANDISE

Official Charity Partners

Costs & Fundraising

Select your option from the list below to start the sign up process.

Option 1

SELF FUNDING
DO IT FOR YOURESLF

Pay for your place in full. Look forward to a great challenge - with no fundraising!

42km MARATHON

£139 Fee paid online
& no fundraising commitment.

25km CHALLENGE

£89 Fee paid online
& no fundraising commitment.

10km CHALLENGE

£49 Fee paid online
& no fundraising commitment.

DUO DEAL

10% OFF if you sign up for 2 events (2025). CLICK BELOW for the code!

Option 2

FULL SPONSORSHIP
FOR CHARITY

Pay a small Reg Fee & Fundraise for a chosen Charity (who pay for your place)

42km MARATHON

£40 Reg Fee & at least
£375 fundraising/sponsorship

25km CHALLENGE

£30 Reg Fee & at least
£275 fundraising/sponsorship

10km CHALLENGE

£20 Reg Fee & at least
£150 fundraising/sponsorship

MAY DEAL

75% OFF standard Reg Fees if you sign up & support an 'Official Charity Partner'

Option 3

MIXED FUNDING
FOR CHARITY

Pay for half your place cost & fundraise less for Charity (who pay half of your place cost)

42km MARATHON

£75 Reg Fee & at least
£225 fundraising/sponsorship

25km CHALLENGE

£50 Reg Fee & at least
£150 fundraising/sponsorship3

10km CHALLENGE

£25 Reg Fee & at least
£75 fundraising/sponsorship

Option 4

OWN PLACE CHARITY
FUNDRAISING

Pay for your place & fundraise whatever you can for a Charity (with NO cost to them)

42km MARATHON

£139 Fee paid online &
fundraise whatever you can

25km CHALLENGE

£89 Fee paid online &
fundraise whatever you can

10km CHALLENGE

£49 Fee paid online &
fundraise whatever you can

DUO DEAL

10% OFF if you sign up for 2 events (2025). CLICK BELOW for the code!
Active Network logo

NOTE – Our registration system provider is Active Network – you’ll need to create an account, or log into an existing one as you register. All Reg Fees are paid online. A 3% Platform Booking Fee applies to all transactions.

'MULTI DEALS' for 3 events or more. SAVE up to 25%!

Choose your charity

We’re proud to work with hundreds of UK charities which benefit from the Ultra Challenge fundraising which exceeded £10 MILLION in 2024.

Our main ‘Series Partners’ & ‘Challenge Partners’ are some of the UK’s major national charities – and if you support one of these ‘Official Partners’ – it’s 75% OFF standard Reg Fees for ‘Full Sponsorship’ sign ups in May (use code MAYDEAL at Checkout to get extra discount)

Choose a Charity, sign up, and set up your JustGiving fundraising page NOW.

OFFICIAL PARTNERS
75% OFF FULL SPONSORSHIP FOR CHARITY REG FEE IN MAY

2025 ASSOCIATE PARTNERS
25% Off Standard Reg Fee

OR CHOOSE FROM over 600 LISTED CHARITIES

OUR OFFICIAL FUNDRAISING PARTNER

FAQs

You must be 18 or over (on the day of the challenge) if taking on a Full Challenge (~100km) or Three Quarter Challenge (~75km); 16+ and accompanied by an adult if taking on a Half Challenge (~50km ), 14+ and accompanied by an adult if taking on a Quarter Challenge (~25km) or Marathon); for a  Half Marathon aged 12+ and accompanied by an adult; and finally 8+ & accompanied by an adult for a 10km/mile Challenge.

Under 18s taking part must be signed up by someone over 18.

You’ll receive a ‘transaction receipt’ (via email) along with a Confirmation Email welcoming you, and detailing any next steps’ timelines you need to be aware of, and how & where to find all the info you’ll need for your Challenge. (NOTEIf you don’t receive this within 12 hours, please check your spam/junk mail folders)

A Multi Deal allows you to save up to 25% if you plan to enter 3 or more events over the year on a Self Fund basis – and always represent our best deal!

Once you have decided how many events you’d like to enter, visit the ‘Multi Deal’ page on the website – or follow the link HERE>>

On the registration page, you must select all of the events you’d like to enter (and specify the distance) – once you’ve have completed your order, you will need to wait until you have received your multi-deal discount code from the team before you will be able to sign up individually for your events. Placing your order does not constitutes entry to the individual events.

When you are attending the events, please ensure you bring ID to collect your event pack so that we can ensure only the original purchaser is participating.

More information on multi-deals is available HERE>>>

If you have already signed up to a Challenge(s) or a multi-deal and now want to take part in another challenge – please complete our application from HERE>>>

All charity sponsorship and mixed funding places close 4 weeks before each challenge, so that you have enough time to fundraise and reach your target. Self funding places close for online registration on the Tuesday before each challenge.

A discount is available if you have previously taken part as a self funding participant.

Please keep an eye out for your discount which will be sent to you via email!

Whilst you are signing up and registering for your challenge – in the TEAM INFO section (towards the end of the registration questions), you will be asked if you would like to ‘Join a team’ or ‘Create a team’.

If selecting to create a team, you will be asked to create a Team Name and Password. Subsequent team members can then register and select to join your team, and will need to provide the team password in order to join it.

We ensure that registered teams are assigned the same start wave (where distance/challenge option allows), and your team name will be printed onto your bib.  

There are no restrictions on our regular teams – you can be any mixture of charities / distances / funding types (i.e. Self Funding, Charity Sponsorship or Mixed Funding), and can have any number of members (even 1!).

Even if you are not fundraising for the same charity, you can still create a challenge team with us.

Yes – as long as you are fundraising for the same charity, you can create a team fundraising page on Just Giving (we recommend letting your charity know this is how you will be fundraising together). However, please be advised that the minimum fundraising targets remain per person (not per team), so you will need to reach the combined total fundraising amount on your page for your group. 

If there is a charity you would like to fundraise for that does not appear on our list, we ask that you speak with your preferred Charity about what you would like to, and ask them to register with us via our short contact form which can be found on our website page www.ultrachallenge.com/the-charities/

Once they’ve registered with us, it will take about 5-7 working days to add them onto our registration forms, and you can then sign up to your chosen challenge in aid of them.

Alternatively you can raise for one of the 600+ charities for 2025 challenges we are currently already working with (see our list HERE>>>), or you can Self Fund your place and fundraise for them independently with no fundraising commitment. 

Please note: the above is relevant for Charity Sponsorship or Mixed Funding places only. If you are entering as a Self Funder you can fundraise for any charity of your choice (only if you want to) & we do not need to be informed.

The payment plan enables you to secure your place on any Ultra Challenge immediately and spread the cost over 3 payments. Sign up with just a 33% deposit, with a 2nd instalment due on 28 February, and then a final 30 March ’25 instalment. 

  • Available to use on Self Funding & Own Place registrations
  • All distances from 25km to 100km
  • Choose to enrol at check out
  • Not available on Winter Walk

You’ve paid an initial 33% (and 3% booking fee) as the non-refundable Registration Fee.

A 2nd payment of 33% and will be charged on Friday 28 February’ 25

A 3rd final balance payment will be charged on Monday 31 March’ 25

Read our 2025 Terms & Conditions

May Deal

75% OFF Standard Charity Reg Fees with our 'Official Partners' - Any Distance

Use Checkout Discount Code: MAYDEAL

SELF FUNDING - 'DUO DEAL'

Sign up to 2 Events – 10% OFF EACH

EG – Choose two 100km Events – SAVE ~£40!

Use Checkout Discount Code: DUODEAL25

& 15% OFF ALL MERCHANDISE

(Visit Online Shop via main Menu)

DEAL ENDS - 31 May '25

. Discount on 'FULL Charity Sponsorship' option ONLY
. DUO CODE can only be used on 2 events.
. Other Deals can't be used with May Deal

DUO DEAL - SAVE UP TO £40!

TAKE ON 2 CHALLENGES & RECIEVE 10% DISCOUNT OFF EACH - SAVING UP TO £40!

use code duodeal25 at check out!

Please note cannot be used with any other discounts or deals, and we reserve the right to cancel your place on a challenge if you do not sign up to two challenges for 2025. 

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